Improvement in lamps



Wvf STABHLEN.

Patenteept. 16,1879.

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UNITED STATES PATENT OEEIcE.

WILLIAM STAEELEN, oF NEw Yoan, N. Y., ASSIGNoE To BENNETT B.

' SCHNEIDER, on SAME PLAGE.

||v| PRovEM ENT IN LAMPS.

. Specification forming part of Letters Patent No. 219,660, dated September 16, 1879; application filed March 1, 1879.

To all who@ it may concern:

Beit known that I, WILLIAM STAEHLEN, of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Larps, andI do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled inthe art to which it appertains to makeand use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this'specification.

My invention relates to the class of lamps known as pump-lamps 5 and itconsists in a pump-lamp with a lower and upper reservoir,

. and in the construction of the iilling-tube,

the pump, and 'tube inside the collar of the upper reservoir, all as hereinafter more fully set forth.

In the annexed drawings, which fully illustrate my invention, Figure l is a side eleva tion of my lamp, partly broken open to show the float. Fig. 2. is a central vertical section of the same.

A represents the base of the lamp, to which the cylinder B is attached, and on the upper end thereof is secured theA top C. D is an outside shellsurrounding the cylinder B, and connecting the top or hase. In the cylinder B is a central horizontal diaphragm or partition, b, which divides the cylinder into a lower reservoir, B1, andan upper reservoir, B2.

E represents the iilling-tub'e, secured in the top (Tand extending downward through the partition b. This Iillingtubeis open at the lower end into the lower reservoir, B, and has also an opening, a, into the upper reservoir, B2, so that both reservoirs can be filled at the same time through one pipe.

The upper end of the lling-tube E is provided with a cap, F, having an air-hole, x, to

provide the necessary air-pressure for the.

a spiral spring, I, upon which is supported a hollow metallic plunger, J, having a ballvalve, e, therein.

From the plunger J extends the rod f up ward through the cap K on the upper end of the cylinder H.

By means of this pump the oil may be pumped from the lower to the upper reservoir without moving any part of the lamp.

From the collar L, in the center of the top (l, extends a tube, M, downward vto the lower portion of the Lipper reservoir, to prevent the wick from interfering with the action ot' the float.

Pump-lamps have been made in which the oil is contained in the base as a reservoir, and provided with a top reservoir into which the oil is pumped, said top reservoir being movable and forming the pump.

The up-and-down movement of the top reservoir, with the burner attached, pumped the oil up to the top reservoir, and there was no provision for the oil to overflow, except over the top of the wick-tube.

This construction could only he used for animal and heavy vegetable oils, but will not answer for coal-oils.

In my lamp the upper reservoir with the burner remains stationary with the lower reservoir, and a separate pump is provided for pumping the oil from the lower to the upper reservoir, which admits of coal or other light oils being used. y

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A pump-lamp having a lowerand an upper oil-reservoir made in one and permanently y connected together, as set forth.

2. A pump-lamp having a lower and an upper oil-reservoir with a single iilling-ppe for filling both reservoirs, substantially as herein set forth. p

3. In combination' with a pump-lamp, the pump-cylinder H, spring I, and metallic plunger J, `with ball-valve e, as shown and de scribed.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in presence of two witnesses.

VILLIAM STAEHLEN.

Witnesses:

W. H. TRIPP, G. H. BOUTON. 

